What is Paul Chang's specialty?

Paul Chang (NPI 1245217496) is a Medicare-billing provider whose primary specialty is Internal Medicine in Ontario, OH.

Where does Paul Chang practice?

Paul Chang practices in Ontario, OH, based on the location reported in the CMS Medicare provider datasets for NPI 1245217496.

How much does Medicare pay Paul Chang?

Paul Chang (NPI 1245217496) received approximately $19K in total Medicare Part B payments, serving 84 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1245217496

Paul ChangMD

PRACTICEPAUL A. CHANG, MD, INC.See all providers at this practice →

Internal MedicineOntario, OHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

100

Unique beneficiaries

—

Total services

271

Distinct HCPCS

Medicare payment

$18K

Peer benchmark

Total Medicare services vs. 3,517 Internal Medicine providers in OH — below median (cohort median 587).

PRESCRIBING · PART D · 2024

Total Rx claims

2,625

Beneficiaries

—

Total drug cost

$84K

Distinct drugs

Brand share

14.6%

Top prescribed drugs

Amlodipine Besylate140 claims

Losartan Potassium136 claims

Omeprazole132 claims

Lisinopril131 claims

Metoprolol Succinate108 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

Hospital

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where Paul Chang's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 3 inbound referrers · 4 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
GALION COMMUNITY HOSPITAL	46	287
MEDCENTRAL HEALTH SYSTEM	25	135
Philip Calendine Diagnostic Radiology · Mansfield, OH	11	38

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MEDCENTRAL HEALTH SYSTEM	35	241
GALION COMMUNITY HOSPITAL	28	136
MEDCENTRAL HEALTH SYSTEM	28	152
Andrew Ryan Diagnostic Radiology · Durham, NC	11	31

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events